| # Copyright (C) 2020 Gerson Fernando Budke <nandojve@gmail.com> |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: | |
| GPIO pins exposed on Atmel Xplained headers. |
| |
| The Xplained layout provide a standard 10 pin header. A board can have |
| one or more headers and can share pins. This connector was developed to |
| match with Atmel AVR XMEGA devices GPIO port plus power signals. The Atmel |
| Xplained Pro standard connector keep compatibility with this header and it |
| can be defined on every board with an Xplained Pro Connector extension and |
| every pin can be defined as general purpose GPIO. |
| |
| The AVR XMEGA port was designed as: |
| |
| Signal Main Function |
| Px0 SDA |
| Px1 SCL |
| Px2 RX |
| Px3 TX |
| Px4 SS |
| Px5 MOSI |
| Px6 MISO |
| Px7 SCK |
| GND |
| VDD |
| |
| Documentation: |
| * https://www.microchip.com/development-tools/xplained-boards |
| * http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-42091-Atmel-Xplained-Pro-Hardware-Development-Kit_User%20Guide.pdf |
| |
| This binding provides a nexus mapping for 10 pins where pins are disposed |
| to have a even and odd column: |
| |
| Connector |
| Bind Pin Name Pin Pin Pin Name Bind |
| 0 I2C(SDA) 1 2 I2C(SCL) 1 |
| 2 UART(RX) 3 4 UART(TX) 3 |
| 4 SPI(CS0) 5 6 SPI(MOSI) 5 |
| 6 SPI(MISO) 7 8 SPI(SCK) 7 |
| GND 9 10 VDD(+3.3V) |
| |
| compatible: "atmel-xplained-header" |
| |
| include: [gpio-nexus.yaml, base.yaml] |
